New details emerge in the video of Britney's wild night last night:

  1. She was joined by sis Jamie Lynn and mom Lynne at Dominick's

  2. Also sitting at their table was agent Jason Trawick, with whom Brit spent some time with last month after announcing the breakup of her marriage with Kevin Federline

  3. Security from the restaurant and Britney's own bodyguard/driver clashed when the scene became a little too chaotic as Brit was preparing to leave the restaurant

  4. Britney was wearing underwear, y'all!